Halloween, donating blood or suffering from a cut, you probably don't give much thought to blood on a regular basis. This fluid that flows through our bodies, though, is truly a matter of life and death. In honor of American Heart Month, let's learn a little bit more about the blood that our hearts pump through our bodies. Blood is composed of cells and plasma. The cells include red blood cells, white blood cells and platelets. The red blood cells carry oxygen from the lungs and give blood its red color. The white blood cells fight infections. The platelets help form clots to stop bleeding in case of a cut. All these cells float in the liquid plasma, which is mostly water. Plasma also contains nutrients, electrolytes, hormones and protein antibodies to fight infection. …show more content…
For example, men tend to have more blood than women of comparable size and weight. Interestingly, people who live at high altitudes may have up to two liters of extra blood compared to those who live at lower altitudes. Because the air at higher altitudes has less oxygen, people who live at high altitudes need extra blood to deliver the right amount of oxygen to their lungs. Scientists estimate the volume of blood in a human body to be approximately 7 percent of body weight. An average adult body with a weight of 150 to 180 pounds will contain approximately 4.7 to 5.5 liters (1.2 to 1.5 gallons) of blood. An average child with a body weight of 80 pounds will have approximately half the amount of blood as an adult. Blood carries out many critical functions in the body. It transports nutrients and oxygen to the body's cells. It also takes away waste from those cells. Blood also moves hormones and chemicals around the
It was part of the idea that blood was just a “humor” that had to be in harmony with the other “humors” of your body: blood, phlegm, yellow bile, and black bile. If you had too much blood in your body that meant that your humors were out of harmony so blood had to be drained.
Heart-Healthy Activities for Elderly Parents for Heart Month in San Diego County Heart disease has been a growing concern in the United States for years. This is likely the result of major lifestyle changes in the modern age. Countless people live sedentary lives, and stress levels seem higher than ever. Because the problem is so widespread, the American Heart Association now recognizes February as Heart Month. One of the goals in doing this is to teach people that they do have options in terms of averting this deadly disease.
Within the immune system, there are four important parts within the blood: platelets (form blood clots), red blood cells (transfer oxygen), white blood cells (fight infection), and plasma (surrounds blood). Starting with white blood cells—there are two different types: phagocytes and lymphocytes. Within phagocytes, there are also dendritic cells and macrophages. Lymphocytes are located within the lymph nodes and include both T Cells (which mature in the thymus) and B Cells. Both of these cells come from bone marrow.
When we think of ‘donating’ we usually associate the word with money and we sometimes make excuses on why we can’t donate. But, we need to realize that there are so many things, some even more valuable than money that we can donate like, our time, items we no longer need, and our blood. I believe that donating blood can have a huge impact on someone’s life and it is something we should all consider doing. Receiving blood can be even more valuable than money for some people. Before donating we just need to consider the place we are donating to.
Individuals without this capacity (blood classification O) tend to store carbs as fat) It's practical Blood assumes a vital part in managing the body's frameworks and looking after homeostasis. It performs many capacities in the body, for without it neither plants nor creatures (counting people) could
The plasma membrane is like the guard must inspect those who enter and those who leave to make sure that only the people and things needed in the community are there. A plasma membrane encloses every type of cell, both prokaryotic and eukaryotic cells. It physically separates the cytoplasm from the surrounding cellular environment. Plasma membrane is a ultrathin, elastic, living, dynamic and selective transport- barrier.
The first most important job it does is ensure that all cells in the body have the right amount of fluid so they do not shrivel and die. (Rinzler). The body also needs the proper amount of extracellular fluid which contain the other body fluids such as blood plasma, bodily secretions, and urine. Water is a solvent and is responsible for transporting nutrients and blood cells through the body. Even when the body is fully hydrated, red blood cells are about 94% water.
Below are some important facts which could actually save your life. 1. Having an unhealthy lifestyle have affected so many people by becoming inflicted with various medical conditions. And sometimes, it gets worse to the point that a blood transfusion may be necessary. Not being able to know exactly your blood type in times like this would be delaying the possibility of helping you get cured of your disease.
If blood flow stops, than the chance of death might take place within minutes due to the impact of unfavourable environment on highly disposed cells (Klein & Carson, 2007). In human, blood is a freely flowing and opaque red fluid, but thicker and stickier as compared to water. It characteristics in terms of colour is imparted through haemoglobin, being a unique iron containing protein. Thus, the erythrocytes (red blood cells) established around 45% of blood volume, and left over cells (including white blood cells or platelets, and leukocytes or thrombocytes) less than 1%.
Blood is one of the most important liquid inside the human body, it has about 4-6 L of blood. Blood circulate inside our body. Losing blood could be really dangerous because blood is liquid that circulate the oxygen inside the human body and the blood wont also circulate which will make the heart stop to pump. Open surgery is one of the cause why people could experience blood loss. Blood loss will occur when an open surgery is preceded, the doctor need to open the layer of skin one by one.
Historical aspects of bone marrow study- A concise history The oldest known procedure carried out on mankind is that of trepanning. Skulls 8000–10,000 years old showing evidence of medical intervention have been found in Europe, Northern Africa, Asia and New Zealand (Fig 1). This extensive distribution has been attributed to Asiatic origins.
Leukocytes use blood mainly as a transport system to travel to areas of the body where they are needed. There are six families of leukocytes that have distinct roles in the body’s defense. These are the monocyte-macrophages, dendritic cells, mast cells, granulocytes, lymphocytes, and natural killer cells. All the leukocytes except the lymphocytes are considered part of the innate immune system. Lymphocytes are the only leukocytes associated with
Others think that the blood in one will sooner or later run out. Many others question where it 's really going to. What many do not know or have any idea of, is that just with a little help, this world can all change, or it can change someones whole world. Many individuals are out there helplessly waiting, praying that one day a donation will come to save their lives; wishing that one 's blood could be the one to match theirs. The only thing getting in the way are rumors